From the_____it was clear that he was guilty, because he did appear on the scene.
A. onset
B. outcome
C. outside
D. outset
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安装在阀井内的管道上的自动排气阀,被污染了的地下水所浸泡,一旦管内失压或停水,自动排气阀就可能将()而造成管道水的污染。
A. 脏水吸入管内
B. 泄漏损失水量
C. 失灵
D. 自动打开
The government claims to be doing all it can to_____corruption.
A. eradicate
B. cancel
C. ignore
D. fight